Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
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AfterHVAC Company in Mill Valley, CA
HVAC work in Mill Valley, CA comes down to three recurring patterns: older homes built into hillsides, coastal fog that rolls over the ridge, and neighborhoods where a service truck has to thread narrow, winding roads. We’re Dalton Heating & Air, and our Mill Valley customers call us for two things most often: a system that stopped working and needs repair now, or an aging setup that’s ready to be replaced with a heat pump. Every job starts with a written price before any work begins and a background-checked tech who shows up inside the stated window. If you need us today, call (361) 306-9515.
Why Mill Valley Homes Are Different
Mill Valley’s housing stock shapes almost every job we do here. Many homes run up the slopes of Mount Tamalpais, which means equipment sits on steep pitches, roof access takes longer, and crawl spaces are often tight and damp. That dampness matters: coastal humidity rusts condenser coils faster here than in drier parts of Marin, and systems that sit unused for months still develop corrosion. Ductwork in older Mill Valley homes, especially in Sycamore Park and Tamalpais Park, was often sized for heating only, which makes a retrofit to cooling a real calculation, not a swap. Permits follow Marin County’s stricter air-quality rules, and some HOAs require specific equipment placement. Fog is the other factor: a system sized for Mill Valley’s mild summers still has to handle the humid marine layer that pushes up the valley most evenings.
Our Main Mill Valley Services
Most Mill Valley homeowners reach out about two things: an air conditioner that’s failed during the one stretch of the year when you actually need it, and a furnace that won’t keep the house warm when the fog turns cold. Here’s what each of those jobs looks like in Mill Valley.
AC Repair in Mill Valley
When an AC unit quits in Mill Valley, the cause is often corrosion from months of coastal fog followed by a sudden heat push. We diagnose the whole system, not just the failed part, because a failing capacitor and a dirty condenser coil usually travel together. Our techs carry common parts so most repairs are finished in one visit. If you need AC Repair in Mill Valley, you’ll get a written price before we touch the unit and a full-year written guarantee on the repair.
Heat Pump Installation in Mill Valley
Mill Valley’s mild winters and cool summers make heat pumps a good fit, especially for homes without existing ductwork. A properly sized heat pump handles both heating and cooling, which matters when a house has only a furnace and window units, a setup we see all over Mill Valley’s older neighborhoods. We don’t do same-day installation; we do a load calculation, order the right equipment, and give you a set install date in writing. For Heat Pump Installation in Mill Valley, the process starts with a free estimate at your home.
Furnace Repair in Mill Valley
Mill Valley furnaces work hardest on damp winter nights, and that’s when they show their age. Common failures here: ignition issues, failing blower motors, and cracked heat exchangers in units that have gone too long between inspections. We service all the major brands and keep commonly needed parts on the truck so most furnace repairs are completed the same visit. If your heat’s out, call for Furnace Repair in Mill Valley – we answer live 24/7, and the repair is guaranteed in writing for a full year.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Mill Valley
Our techs are factory-trained on nine major residential HVAC brands, including Rheem, York, and Daikin, which we see often in Mill Valley homes, along with Bryant systems on newer construction. We stock common replacement parts locally so we’re not waiting on a warehouse for every repair. See our brands for the full lineup.
Pricing for HVAC Company in Mill Valley, CA
| Service | Typical range in Mill Valley |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Tune-up | $80 – $200 |
What pushes a Mill Valley repair toward the top of that range is access: units on steep hillsides, roof-mounted condensers, and crawl-space furnaces all take longer to reach safely. Whatever the number, you’ll see it in writing before any work begins – no price that shifts at the door, and a full-year written guarantee on every repair.
Neighborhoods We Serve in Mill Valley
We run calls throughout Mill Valley, and we’re typically able to reach most addresses within a couple of hours when the call comes in before early afternoon. These are a few of the neighborhoods we’re in regularly:
- Sycamore Park
- Tamalpais Park
- Boyes Drive area
- Almonte
- Homestead Valley
Service Area – Cities Near Mill Valley
Dalton Heating & Air serves Mill Valley and the surrounding Marin towns. If you’re in Corte Madera, CA, Larkspur, CA, Sausalito, CA, or Kentfield, CA, we run calls there too on the same scheduling system, with the same written-price and full-year guarantee terms.
Serving Mill Valley, CA - Our Local Coverage Area
We’re based in the Mill Valley area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Mill Valley
In most cases we’re at a Mill Valley address within a few hours when you call before early afternoon, and we answer the phone live 24/7. Some hillside and gated accesses take a little longer, but our dispatch is coordinated from our San Francisco Bay Area office, and our techs work Mill Valley routes daily. Call (361) 306-9515 and you’ll talk to a person, not a voicemail queue.
It depends on the scope. Repairs on existing equipment typically don’t need permits, but equipment replacement or new installation often does, and some Mill Valley HOAs have placement restrictions. We’ll tell you what’s needed for your specific job so there’s no surprise from the county or the association.
Without seeing the unit and the access, any phone price is a guess, so we don’t hand one out. What you’ll get instead is a free, no-obligation visit where we diagnose the issue and put the exact repair or installation price in writing before any work starts. Call (361) 306-9515 to schedule that visit.
If your HVAC system has stopped doing its job in Mill Valley, call (361) 306-9515 for a free estimate. A real person answers, the price goes in writing before work begins, and every repair is guaranteed in writing for a full year.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Mill Valley Customers Say
"Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."
- Karen J."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Tech arrived in uniform right on time. AC wasn't cooling, found a failed capacitor, and replaced it in twenty minutes. The owner is a veteran and the company runs like it."
- Frank O.